The GX-274 ASPEC is a higher throughput four-probe instrument capable of processing up to 4 samples in parallel to increase both throughput and the efficiency of your cartridge-based applications. Based on positive pressure elution, this instrument processes up to four samples in a single step with an innovative and proven sealing cap technology, where each cartridge is sealed, run, and monitored individually. The two 406 Dual Syringe Pumps allow the user to transfer liquids, process up to four samples in parallel, and to monitor pressure on each fluid path individually.